Adagio Medical Holdings, Inc. (ADGM) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

15,104,389Shares Outstanding

10,092,147Shares held by institutions

$9,890,304Value of institutional holdings

110.20%Institutional ownership %

45.99%Shares Changed QoQ

21No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

According to SEC filings for the period ending December 2025, Adagio Medical Holdings, Inc. (NASDAQ:ADGM) is held by 21 institutional firms.

These investors collectively held 110.2% of the company's total shares outstanding in December 2025, up from 77.1% in September 2025.
On a quarter-over-quarter basis, institutional holdings shifted by 45.99%, with a year-over-year an increase of 31.25% in the count of filers.
Among the 21 institutional holders of Adagio Medical Holdings, 16 added to their stakes while 1 trimmed their positions and 4 held steady.
The total number of shares held by institutions in Adagio Medical Holdings increased to 16.65Mn as of December 2025, a net change of up by 5.24Mn shares quarter on quarter, and up 5.84Mn shares year over year.
PERCEPTIVE ADVISORS LLC's holding of 9.88Mn shares as of December 31, 2025 makes it the primary institutional investor in Adagio Medical Holdings, owning 65.39% of the stock.
Among the most significant buyers of Adagio Medical Holdings during December 2025 were Sio Capital Management, LLC (1.29Mn), Alyeska Investment Group, L.P. (1.16Mn), ADAR1 Capital Management, LLC (1.16Mn), SILVERARC CAPITAL MANAGEMENT, LLC (515.38K), ARMISTICE CAPITAL, LLC (478.00K).
Leading sellers of Adagio Medical Holdings stock in December 2025 included Shaolin Capital Management LLC (8.83K).
The top 10 institutional holders of Adagio Medical Holdings for the quarter ending December 2025 included PERCEPTIVE ADVISORS LLC (9.88Mn), Sio Capital Management, LLC (1.29Mn), ADAGE CAPITAL PARTNERS GP, L.L.C. (1.26Mn), Alyeska Investment Group, L.P. (1.16Mn), ADAR1 Capital Management, LLC (1.16Mn), SILVERARC CAPITAL MANAGEMENT, LLC (515.38K), ARMISTICE CAPITAL, LLC (478.00K), Hudson Bay Capital Management LP (296.37K), Shaolin Capital Management LLC (171.17K), Opaleye Management Inc. (110.57K).

21 Institutional Holders

10,092,147 Total Shares Held

Rows:

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Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
PERCEPTIVE ADVISORS LLC	31 Dec, 2025	9,876,576	0	0.00%	$10,271,639.00
Sio Capital Management, LLC	31 Dec, 2025	1,288,461	1,288,461	0.00%	$1,339,999.00
ADAGE CAPITAL PARTNERS GP, L.L.C.	31 Dec, 2025	1,258,501	200,000	18.89%	$1,308,841.00
Alyeska Investment Group, L.P.	31 Dec, 2025	1,159,615	1,159,615	0.00%	$1,206,000.00
ADAR1 Capital Management, LLC	31 Dec, 2025	1,159,614	1,159,614	0.00%	$1,205,999.00
SILVERARC CAPITAL MANAGEMENT, LLC	31 Dec, 2025	515,384	515,384	0.00%	$535,999.00
ARMISTICE CAPITAL, LLC	31 Dec, 2025	478,000	478,000	0.00%	$497,120.00
Hudson Bay Capital Management LP	31 Dec, 2025	296,369	296,369	0.00%	$308,224.00
Shaolin Capital Management LLC	31 Dec, 2025	171,170	-8,830	-4.91%	$178,017.00
Opaleye Management Inc.	31 Dec, 2025	110,571	0	0.00%	$114,994.00
Affinity Asset Advisors, LLC	31 Dec, 2025	80,000	0	0.00%	$83,200.00
VANGUARD GROUP INC	31 Dec, 2025	79,451	46,373	140.19%	$82,629.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	68,342	32,100	88.57%	$71,075.00
TORONTO DOMINION BANK	31 Dec, 2025	25,000	0	0.00%	$26,000.00
NORTHERN TRUST CORP	31 Dec, 2025	21,598	21,598	0.00%	$22,462.00
HRT FINANCIAL LP	31 Dec, 2025	18,618	18,618	0.00%	$19.00
XTX Topco Ltd	31 Dec, 2025	18,103	18,103	0.00%	$18,827.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	11,494	11,465	39,534.48%	$11,954.00
Tower Research Capital LLC (TRC)	31 Dec, 2025	8,146	6,062	290.88%	$8,472.00
Crewe Advisors LLC	31 Dec, 2025	500	500	0.00%	$520.00

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